Identification of Wear Characteristics in Tool Wear Model of Cutting Process

The tool wear progress is simulated with the cutting force and the cutting temperature. The cutting force is predicted with piling up the orthogonal cuttings in the force model based on the minimum cutting energy. The cutting temperature is predicted in the finite volume method with assuming the stress distribution. The abrasive wear model is applied to the flank wear prediction. The wear characteristic constants in the wear model are identified to minimize the model error between the prediction and the measured wear rates. Because the initial flank wear generally occurs in the flank wear progress, the prediction starts at the initial wear offset. The initial wear offsets are also identified to minimize the error between the predicted and the measured flank wear lands. Some of flank wear progresses are measured to identify the wear characteristics constants and the initial wear offsets in the turning operation. The tool wear prediction is performed to verify the identification of the wear characteristics.